/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:01:25,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:01:25,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:01:25,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-21 23:01:25,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:01:25,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:01:25,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:01:25,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:01:25,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:01:25,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:01:25,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:01:25,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:01:25,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:01:25,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:01:25,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:01:25,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:01:25,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 23:01:25,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:01:25,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:01:25,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:01:25,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 23:01:25,742 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:01:25,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:01:25,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:01:25,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:01:25,746 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:01:25,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:01:25,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:01:25,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:01:25,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:01:25,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:01:25,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:01:25,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:01:25,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:01:25,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:01:25,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:01:25,749 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:01:25,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:01:25,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:01:25,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:01:25,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:01:25,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:01:25,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:01:25,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:01:25,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:01:25,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:01:25,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:01:25,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:01:25,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:01:25,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:01:25,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-08-21 23:01:26,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:01:26,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:01:26,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:01:26,065 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:01:26,065 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:01:26,066 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-08-21 23:01:26,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d302dbf7/ab05903e85454b5097cbbacf2f093921/FLAG96d84c947 [2020-08-21 23:01:26,699 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:01:26,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-08-21 23:01:26,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d302dbf7/ab05903e85454b5097cbbacf2f093921/FLAG96d84c947 [2020-08-21 23:01:26,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d302dbf7/ab05903e85454b5097cbbacf2f093921 [2020-08-21 23:01:26,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:01:26,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:01:26,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:01:26,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:01:26,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:01:26,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500f3ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26, skipping insertion in model container [2020-08-21 23:01:26,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:01:27,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:01:27,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:01:27,554 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:01:27,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:01:27,731 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:01:27,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27 WrapperNode [2020-08-21 23:01:27,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:01:27,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:01:27,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:01:27,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:01:27,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (1/1) ... [2020-08-21 23:01:27,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (1/1) ... [2020-08-21 23:01:27,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (1/1) ... [2020-08-21 23:01:27,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (1/1) ... [2020-08-21 23:01:27,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (1/1) ... [2020-08-21 23:01:27,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (1/1) ... [2020-08-21 23:01:27,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (1/1) ... [2020-08-21 23:01:27,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:01:27,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:01:27,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:01:27,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:01:27,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:01:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:01:28,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:01:28,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 23:01:28,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:01:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 23:01:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:01:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:01:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 23:01:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:01:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:01:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:01:29,268 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:01:29,269 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 23:01:29,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:01:29 BoogieIcfgContainer [2020-08-21 23:01:29,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:01:29,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:01:29,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:01:29,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:01:29,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:01:26" (1/3) ... [2020-08-21 23:01:29,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef314c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:01:29, skipping insertion in model container [2020-08-21 23:01:29,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:27" (2/3) ... [2020-08-21 23:01:29,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef314c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:01:29, skipping insertion in model container [2020-08-21 23:01:29,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:01:29" (3/3) ... [2020-08-21 23:01:29,285 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2020-08-21 23:01:29,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:01:29,307 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:01:29,322 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:01:29,350 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:01:29,351 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:01:29,351 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:01:29,351 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:01:29,351 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:01:29,351 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:01:29,352 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:01:29,352 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:01:29,375 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-21 23:01:29,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-08-21 23:01:29,388 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:29,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:29,390 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:29,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1328102103, now seen corresponding path program 1 times [2020-08-21 23:01:29,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:29,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047888766] [2020-08-21 23:01:29,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:30,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:01:30,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047888766] [2020-08-21 23:01:30,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:01:30,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 23:01:30,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775202880] [2020-08-21 23:01:30,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:01:30,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:30,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:01:30,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:01:30,152 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-21 23:01:32,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:32,594 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-21 23:01:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:01:32,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-08-21 23:01:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:32,614 INFO L225 Difference]: With dead ends: 698 [2020-08-21 23:01:32,615 INFO L226 Difference]: Without dead ends: 423 [2020-08-21 23:01:32,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:01:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-21 23:01:32,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-21 23:01:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-21 23:01:32,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-08-21 23:01:32,741 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 121 [2020-08-21 23:01:32,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:32,745 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-08-21 23:01:32,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:01:32,745 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-08-21 23:01:32,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-08-21 23:01:32,759 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:32,759 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:32,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:01:32,760 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:32,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:32,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1654189344, now seen corresponding path program 1 times [2020-08-21 23:01:32,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:32,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105444832] [2020-08-21 23:01:32,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:32,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:32,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:01:33,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105444832] [2020-08-21 23:01:33,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:01:33,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:01:33,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52501817] [2020-08-21 23:01:33,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:01:33,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:33,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:01:33,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:01:33,009 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-08-21 23:01:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:34,464 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-08-21 23:01:34,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:01:34,464 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-08-21 23:01:34,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:34,471 INFO L225 Difference]: With dead ends: 1130 [2020-08-21 23:01:34,472 INFO L226 Difference]: Without dead ends: 719 [2020-08-21 23:01:34,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:01:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-08-21 23:01:34,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-08-21 23:01:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-08-21 23:01:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-08-21 23:01:34,553 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 131 [2020-08-21 23:01:34,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:34,553 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-08-21 23:01:34,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:01:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-08-21 23:01:34,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-21 23:01:34,565 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:34,566 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:34,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:01:34,568 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:34,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:34,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1456847330, now seen corresponding path program 1 times [2020-08-21 23:01:34,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:34,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855561125] [2020-08-21 23:01:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:34,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:34,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:34,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:01:34,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855561125] [2020-08-21 23:01:34,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:34,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 23:01:34,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638098669] [2020-08-21 23:01:34,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:01:34,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:34,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:01:34,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:01:34,985 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 6 states. [2020-08-21 23:01:36,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:36,264 INFO L93 Difference]: Finished difference Result 1493 states and 2137 transitions. [2020-08-21 23:01:36,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:01:36,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-08-21 23:01:36,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:36,274 INFO L225 Difference]: With dead ends: 1493 [2020-08-21 23:01:36,274 INFO L226 Difference]: Without dead ends: 701 [2020-08-21 23:01:36,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:01:36,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-08-21 23:01:36,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 695. [2020-08-21 23:01:36,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-21 23:01:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 890 transitions. [2020-08-21 23:01:36,307 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 890 transitions. Word has length 132 [2020-08-21 23:01:36,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:36,308 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 890 transitions. [2020-08-21 23:01:36,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:01:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 890 transitions. [2020-08-21 23:01:36,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-21 23:01:36,311 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:36,312 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:36,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:01:36,312 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:36,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:36,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1679080988, now seen corresponding path program 1 times [2020-08-21 23:01:36,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:36,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894319201] [2020-08-21 23:01:36,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:36,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:36,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:01:36,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894319201] [2020-08-21 23:01:36,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:36,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 23:01:36,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484847430] [2020-08-21 23:01:36,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:01:36,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:36,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:01:36,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:01:36,757 INFO L87 Difference]: Start difference. First operand 695 states and 890 transitions. Second operand 7 states. [2020-08-21 23:01:37,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:37,804 INFO L93 Difference]: Finished difference Result 1472 states and 1929 transitions. [2020-08-21 23:01:37,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:01:37,805 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-08-21 23:01:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:37,810 INFO L225 Difference]: With dead ends: 1472 [2020-08-21 23:01:37,810 INFO L226 Difference]: Without dead ends: 701 [2020-08-21 23:01:37,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:01:37,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-08-21 23:01:37,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 695. [2020-08-21 23:01:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-21 23:01:37,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 885 transitions. [2020-08-21 23:01:37,847 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 885 transitions. Word has length 133 [2020-08-21 23:01:37,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:37,848 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 885 transitions. [2020-08-21 23:01:37,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:01:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 885 transitions. [2020-08-21 23:01:37,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-21 23:01:37,875 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:37,875 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:37,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:01:37,875 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:37,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:37,876 INFO L82 PathProgramCache]: Analyzing trace with hash 982548902, now seen corresponding path program 1 times [2020-08-21 23:01:37,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:37,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033706196] [2020-08-21 23:01:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:38,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:38,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:01:38,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033706196] [2020-08-21 23:01:38,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:38,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 23:01:38,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35291296] [2020-08-21 23:01:38,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:01:38,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:38,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:01:38,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:01:38,061 INFO L87 Difference]: Start difference. First operand 695 states and 885 transitions. Second operand 6 states. [2020-08-21 23:01:39,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:39,478 INFO L93 Difference]: Finished difference Result 1938 states and 2564 transitions. [2020-08-21 23:01:39,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:01:39,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-08-21 23:01:39,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:39,487 INFO L225 Difference]: With dead ends: 1938 [2020-08-21 23:01:39,488 INFO L226 Difference]: Without dead ends: 1249 [2020-08-21 23:01:39,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:01:39,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2020-08-21 23:01:39,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1245. [2020-08-21 23:01:39,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-08-21 23:01:39,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1570 transitions. [2020-08-21 23:01:39,539 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1570 transitions. Word has length 136 [2020-08-21 23:01:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:39,541 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1570 transitions. [2020-08-21 23:01:39,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:01:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1570 transitions. [2020-08-21 23:01:39,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-08-21 23:01:39,547 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:39,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:39,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:01:39,548 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:39,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:39,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1645328590, now seen corresponding path program 1 times [2020-08-21 23:01:39,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:39,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858158888] [2020-08-21 23:01:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:39,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:39,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:39,769 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:01:39,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858158888] [2020-08-21 23:01:39,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:39,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 23:01:39,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914240362] [2020-08-21 23:01:39,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:01:39,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:39,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:01:39,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:01:39,773 INFO L87 Difference]: Start difference. First operand 1245 states and 1570 transitions. Second operand 5 states. [2020-08-21 23:01:40,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:40,839 INFO L93 Difference]: Finished difference Result 3312 states and 4254 transitions. [2020-08-21 23:01:40,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:01:40,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-08-21 23:01:40,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:40,853 INFO L225 Difference]: With dead ends: 3312 [2020-08-21 23:01:40,853 INFO L226 Difference]: Without dead ends: 2073 [2020-08-21 23:01:40,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:01:40,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2020-08-21 23:01:40,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1660. [2020-08-21 23:01:40,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1660 states. [2020-08-21 23:01:40,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2077 transitions. [2020-08-21 23:01:40,918 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2077 transitions. Word has length 174 [2020-08-21 23:01:40,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:40,919 INFO L479 AbstractCegarLoop]: Abstraction has 1660 states and 2077 transitions. [2020-08-21 23:01:40,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:01:40,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2077 transitions. [2020-08-21 23:01:40,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-08-21 23:01:40,925 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:40,926 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:40,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 23:01:40,926 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:40,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:40,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1399651525, now seen corresponding path program 1 times [2020-08-21 23:01:40,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:40,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978543552] [2020-08-21 23:01:40,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:41,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:41,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:41,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:01:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 23:01:41,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978543552] [2020-08-21 23:01:41,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:41,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 23:01:41,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047165258] [2020-08-21 23:01:41,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:01:41,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:41,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:01:41,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:01:41,119 INFO L87 Difference]: Start difference. First operand 1660 states and 2077 transitions. Second operand 7 states. [2020-08-21 23:01:42,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:42,694 INFO L93 Difference]: Finished difference Result 4049 states and 5206 transitions. [2020-08-21 23:01:42,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:01:42,695 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-08-21 23:01:42,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:42,714 INFO L225 Difference]: With dead ends: 4049 [2020-08-21 23:01:42,714 INFO L226 Difference]: Without dead ends: 2395 [2020-08-21 23:01:42,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:01:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2020-08-21 23:01:42,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2230. [2020-08-21 23:01:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2230 states. [2020-08-21 23:01:42,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2778 transitions. [2020-08-21 23:01:42,806 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2778 transitions. Word has length 187 [2020-08-21 23:01:42,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:42,806 INFO L479 AbstractCegarLoop]: Abstraction has 2230 states and 2778 transitions. [2020-08-21 23:01:42,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:01:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2778 transitions. [2020-08-21 23:01:42,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-08-21 23:01:42,815 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:42,816 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:42,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 23:01:42,816 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:42,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:42,817 INFO L82 PathProgramCache]: Analyzing trace with hash -476697068, now seen corresponding path program 1 times [2020-08-21 23:01:42,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:42,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032992424] [2020-08-21 23:01:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:01:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:01:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 83 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-21 23:01:43,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032992424] [2020-08-21 23:01:43,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:43,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 23:01:43,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953577047] [2020-08-21 23:01:43,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:01:43,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:43,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:01:43,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:01:43,032 INFO L87 Difference]: Start difference. First operand 2230 states and 2778 transitions. Second operand 7 states. [2020-08-21 23:01:44,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:44,256 INFO L93 Difference]: Finished difference Result 4877 states and 6098 transitions. [2020-08-21 23:01:44,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:01:44,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-08-21 23:01:44,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:44,270 INFO L225 Difference]: With dead ends: 4877 [2020-08-21 23:01:44,271 INFO L226 Difference]: Without dead ends: 2653 [2020-08-21 23:01:44,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:01:44,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2020-08-21 23:01:44,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2643. [2020-08-21 23:01:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2643 states. [2020-08-21 23:01:44,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 3232 transitions. [2020-08-21 23:01:44,358 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 3232 transitions. Word has length 203 [2020-08-21 23:01:44,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:44,358 INFO L479 AbstractCegarLoop]: Abstraction has 2643 states and 3232 transitions. [2020-08-21 23:01:44,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:01:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 3232 transitions. [2020-08-21 23:01:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-08-21 23:01:44,368 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:44,368 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:44,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 23:01:44,369 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:44,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:44,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1638592990, now seen corresponding path program 1 times [2020-08-21 23:01:44,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:44,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179407035] [2020-08-21 23:01:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:01:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-21 23:01:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 104 proven. 21 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-08-21 23:01:44,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179407035] [2020-08-21 23:01:44,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:44,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 23:01:44,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630191688] [2020-08-21 23:01:44,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:01:44,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:44,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:01:44,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:01:44,820 INFO L87 Difference]: Start difference. First operand 2643 states and 3232 transitions. Second operand 8 states. [2020-08-21 23:01:47,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:47,809 INFO L93 Difference]: Finished difference Result 5286 states and 6542 transitions. [2020-08-21 23:01:47,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 23:01:47,810 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 237 [2020-08-21 23:01:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:47,811 INFO L225 Difference]: With dead ends: 5286 [2020-08-21 23:01:47,811 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 23:01:47,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-08-21 23:01:47,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 23:01:47,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 23:01:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 23:01:47,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 23:01:47,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 237 [2020-08-21 23:01:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:47,822 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 23:01:47,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:01:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 23:01:47,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 23:01:47,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 23:01:47,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 23:01:48,235 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 113 [2020-08-21 23:01:48,371 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 113 [2020-08-21 23:01:49,178 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 57 [2020-08-21 23:01:49,454 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-08-21 23:01:49,680 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-08-21 23:01:49,684 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:01:49,685 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-21 23:01:49,685 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:01:49,685 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-21 23:01:49,685 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-21 23:01:49,685 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-21 23:01:49,686 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,687 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,688 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-21 23:01:49,688 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-21 23:01:49,688 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-21 23:01:49,688 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-21 23:01:49,688 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-21 23:01:49,688 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-21 23:01:49,688 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-21 23:01:49,688 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-21 23:01:49,689 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-21 23:01:49,689 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-21 23:01:49,689 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-21 23:01:49,689 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 521) no Hoare annotation was computed. [2020-08-21 23:01:49,689 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-21 23:01:49,689 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-21 23:01:49,689 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-21 23:01:49,689 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse6 (not (= |old(~a17~0)| 1))) (.cse5 (= ~a17~0 1)) (.cse7 (not (= |old(~a20~0)| 1))) (.cse8 (= 5 |old(~a16~0)|)) (.cse10 (and (= ~a17~0 |old(~a17~0)|) .cse0 .cse1 .cse2 .cse3 .cse4)) (.cse9 (not (= ~a12~0 8)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9) (or .cse6 (not (<= |old(~a21~0)| 0)) (and .cse0 .cse1 .cse2 .cse4 (= 5 ~a16~0) .cse5) (not .cse8) .cse9) (or .cse7 .cse10 .cse8 (= |old(~a21~0)| 1) .cse9) (or .cse10 (not (<= |old(~a16~0)| 4)) .cse9) (or (= |old(~a8~0)| 13) (not (<= |old(~a16~0)| 5)) .cse10 .cse9) (or (not (<= 15 |old(~a8~0)|)) .cse10 .cse9)))) [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (not (= ~a7~0 1)) (= 5 ~a16~0) (= ~a17~0 1)) [2020-08-21 23:01:49,704 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (= |old(~a7~0)| 1)) [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 5 ~a16~0))) (let ((.cse2 (not .cse0)) (.cse3 (= ~a20~0 1)) (.cse1 (= ~a17~0 1))) (or (not (= |old(~a20~0)| 1)) (and (<= ~a21~0 0) .cse0 .cse1) (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1) (<= 15 ~a8~0) (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 5) (not (= ~a8~0 13))) (and .cse2 (not (= ~a21~0 1)) .cse3) (<= ~a16~0 4) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse2 .cse3 .cse1) (not (= ~a12~0 8))))) [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 5 ~a16~0))) (let ((.cse2 (not .cse0)) (.cse3 (= ~a20~0 1)) (.cse1 (= ~a17~0 1))) (or (not (= |old(~a20~0)| 1)) (and (<= ~a21~0 0) .cse0 .cse1) (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1) (<= 15 ~a8~0) (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 5) (not (= ~a8~0 13))) (and .cse2 (not (= ~a21~0 1)) .cse3) (<= ~a16~0 4) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse2 .cse3 .cse1) (not (= ~a12~0 8))))) [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-21 23:01:49,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:01:49 BoogieIcfgContainer [2020-08-21 23:01:49,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 23:01:49,730 INFO L168 Benchmark]: Toolchain (without parser) took 22795.08 ms. Allocated memory was 141.0 MB in the beginning and 511.7 MB in the end (delta: 370.7 MB). Free memory was 100.8 MB in the beginning and 299.9 MB in the end (delta: -199.1 MB). Peak memory consumption was 344.1 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,730 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 23:01:49,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.84 ms. Allocated memory was 141.0 MB in the beginning and 207.1 MB in the end (delta: 66.1 MB). Free memory was 100.6 MB in the beginning and 172.8 MB in the end (delta: -72.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,732 INFO L168 Benchmark]: Boogie Preprocessor took 180.83 ms. Allocated memory is still 207.1 MB. Free memory was 172.8 MB in the beginning and 167.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,733 INFO L168 Benchmark]: RCFGBuilder took 1360.46 ms. Allocated memory was 207.1 MB in the beginning and 235.9 MB in the end (delta: 28.8 MB). Free memory was 167.4 MB in the beginning and 174.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,734 INFO L168 Benchmark]: TraceAbstraction took 20450.65 ms. Allocated memory was 235.9 MB in the beginning and 511.7 MB in the end (delta: 275.8 MB). Free memory was 174.5 MB in the beginning and 299.9 MB in the end (delta: -125.4 MB). Peak memory consumption was 322.9 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.84 ms. Allocated memory was 141.0 MB in the beginning and 207.1 MB in the end (delta: 66.1 MB). Free memory was 100.6 MB in the beginning and 172.8 MB in the end (delta: -72.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.83 ms. Allocated memory is still 207.1 MB. Free memory was 172.8 MB in the beginning and 167.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1360.46 ms. Allocated memory was 207.1 MB in the beginning and 235.9 MB in the end (delta: 28.8 MB). Free memory was 167.4 MB in the beginning and 174.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20450.65 ms. Allocated memory was 235.9 MB in the beginning and 511.7 MB in the end (delta: 275.8 MB). Free memory was 174.5 MB in the beginning and 299.9 MB in the end (delta: -125.4 MB). Peak memory consumption was 322.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 521]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((!(\old(a20) == 1) || ((a21 <= 0 && 5 == a16) && a17 == 1)) || !(\old(a21) == 1)) || \old(a7) == 1) || 15 <= a8) || !(\old(a17) == 1)) || (a16 <= 5 && !(a8 == 13))) || ((!(5 == a16) && !(a21 == 1)) && a20 == 1)) || a16 <= 4) || !(5 == \old(a16))) || !(15 == \old(a8))) || ((!(5 == a16) && a20 == 1) && a17 == 1)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.4s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 4473 SDslu, 274 SDs, 0 SdLazy, 6900 SolverSat, 1179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2643occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 632 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 102 PreInvPairs, 146 NumberOfFragments, 472 HoareAnnotationTreeSize, 102 FomulaSimplifications, 124784 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7316 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1454 NumberOfCodeBlocks, 1454 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1445 ConstructedInterpolants, 0 QuantifiedInterpolants, 1161136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 398/433 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...